The current version is not a plugin.
Is a Windows tools to be installed on a VM or physical machine (I suggest the same that you use for VCB or IT Assistant or for SAN HQ).
In the equallogic.com/support download you can find also the documentation.
But I suggest to wait the new version (not sure if is already available) because is a virtual appliance and works as a vCenter plugin. Really cool and useful.
Andre
Andrew | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro